package com.gjt.dlmall.product.config;

import org.springframework.boot.autoconfigure.cache.CacheProperties;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @author gjt
 * @version 1.0
 * @date 2021/12/5 2:00
 */
@Configuration
@EnableCaching
public class MyCacheConfig {

    @Bean
    RedisCacheConfiguration redisCacheConfiguration(CacheProperties cacheProperties){
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
        //修改 key 和 value 的序列化机制
        config = config.serializeKeysWith(
                RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer())
        );
        config = config.serializeValuesWith(
                RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer())
        );
        //将配置文件夹中的所有配置进行失效
        CacheProperties.Redis redisProperties = cacheProperties.getRedis();
        if(redisProperties.getTimeToLive() != null){
            config = config.entryTtl(redisProperties.getTimeToLive());
        }
        if (redisProperties.getKeyPrefix() != null){
            config = config.prefixKeysWith(redisProperties.getKeyPrefix());
        }
        if (!redisProperties.isCacheNullValues()){
            config = config.disableCachingNullValues();
        }
        if (!redisProperties.isUseKeyPrefix()){
            config = config.disableKeyPrefix();
        }
        return config;
    }

}
